Applied Boron Did Not Increase Alfalfa Yield

Snippet from the Agronomy Journal:
"In a recent Agronomy Journal article, researchers report on two-year study in Creston, MT on ground with low soil boron. The response of alfalfa yield, forage quality, and petiole boron content to five B rates and three water regimes (rainfed, 50%, and 100% evapotranspiration) were quantified.

The team found that foliar-applied B did not increase yield and crude protein of alfalfa in either year, despite the indication of increased concentration of boron in the tissues as the boron application is increased. A similar trend was observed across moisture regimes. Boron concentration in tissues also increased as the level of available moisture increased regardless of boron. Also in this study, the yield of the 50% evapotranspiration was similar to 100% evapotranspiration.

The application of boron from a low initial soil B test may not be a critical agronomic management to prioritize. In-season field observation for B deficiency with confirmatory tissue tests can help manage alfalfa better."

Farm Reports

Effects of Boron Fertilizer on Alfalfa Yield and Quality
2016     2015
Effects of Boron Fertilizer and Irrigation on Alfalfa Yield and Quality
2016     2017
Sulfur Fertilizer Sources on Alfalfa Yield and Quality

2013